SEBA-902 single-olt tests;
Pin protoc-gen-go to 1.3.2 to resolve compatibility issue;
Run go mod tidy / go mod vendor on importer;
Add Go Module support to demotest

Change-Id: Ifde824fc9a6317b0adc1e12bea54ee1f9b788906
diff --git a/vendor/github.com/sirupsen/logrus/logrus.go b/vendor/github.com/sirupsen/logrus/logrus.go
index 8644761..2f16224 100644
--- a/vendor/github.com/sirupsen/logrus/logrus.go
+++ b/vendor/github.com/sirupsen/logrus/logrus.go
@@ -51,7 +51,7 @@
 		return err
 	}
 
-	*level = Level(l)
+	*level = l
 
 	return nil
 }